H3-24 | Martian Moon eXplorer (MMX)

MMX is a Japanese scientific mission to land on Phobos, one of the two moons of Mars, to collect samples before bringing them back to Earth. The mission includes a small French/German rover to explore the surface of Phobos.

This mission is flown by Mitsubishi Heavy Industries. It is classified as a planetary science mission. Liftoff is planned from Yoshinobu Launch Complex LP-2. Launch windows shift often; this page is rebuilt every day with the latest scheduled time.

H3-24 | Martian Moon eXplorer (MMX) is scheduled to lift off on Saturday, October 31, 2026. The countdown above updates live, so you always see exactly how many days, hours, and minutes are left.